Upgrade

These are the release notes and advice for upgrading Commons-IO from
version 1.3 to version 1.3.1.

Commons IO is a package of Java utility classes for java.io's hierarchy.
Classes in this package are considered to be so standard and of such high
reuse as to justify existence in java.io.
Commons IO contains utility classes, stream implementations, file filters,
and endian transformation classes.
Compatibility with 1.3
----------------------
Binary compatible - No
See [IO-113]
Source compatible - No
See [IO-113]
Semantic compatible - Yes
Bug fixes from 1.3
------------------
- FileUtils
- NPE in openOutputStream(File) when file has no parent in path [IO-112]
- readFileToString(File) is not static [IO-113]